Stadium seat accessory



FIG. 1 is a bottom view of a stadium seat accessory in accord with my new design in the closed and folded mode;

FIG. 2 is a top plan view of the design in the closed and folded mode;

FIG. 3 is an end elevational view of FIG. 1 as taken from the right thereof;

FIG. 4 is an end elevational view of FIG. 2 as taken from the left thereof;

FIG. 5 is a top plan view of my new design with the pocket flap and mounting straps extended;

FIG. 6 is a bottom view illustrating the pocket flap and mounting straps extended; and,

FIG. 7 is a perspective front and end view of my stadium seat accessory as mounted upon a stadium seat illustrated in dotted lines.

The broken line showing of a stadium seat is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a stadium seat accessory, as shown and described. 